C6.4 Valve Seat 294-1679 294-1680 for Caterpillar Engine Excavator Parts

Product Details

Product Overview

This premium replacement Valve Seat is specifically designed for use in Caterpillar C6.4 diesel engines, commonly found in heavy machinery such as excavators, bulldozers, and loaders. The part numbers 294-1679 and 294-1680 correspond to the intake and exhaust valve seats, ensuring a precise fit within the cylinder head assembly.

Manufactured to OEM size specifications, this component is a direct replacement for worn or damaged seats, restoring proper valve sealing and compression. Whether you are rebuilding a C6.4 engine in a Caterpillar excavator or performing maintenance on a forklift or truck, this valve seat offers a reliable and cost-effective solution for engine overhaul projects.

Key Features & Benefits

• Precision OEM Size: Machined to exact OEM specifications for a seamless fit into the C6.4 cylinder head without modifications.
• Durable Construction: Manufactured from high-strength alloy materials designed to withstand the extreme heat and pressure of diesel combustion cycles.
• Enhanced Valve Seal: Ensures a tight seal between the valve and seat, improving compression, fuel efficiency, and reducing exhaust blow-by.
• Direct Cross-Reference: Fully interchangeable with genuine Caterpillar parts 294-1679 and 294-1680, simplifying your parts ordering process.
• Versatile Application: Suitable for a wide range of heavy equipment including excavators, bulldozers, loaders, buses, and trucks powered by the C6.4 engine.
• Quality Tested: Each batch undergoes outgoing inspection and machinery test reporting to confirm dimensional accuracy and material integrity.

Technical Specifications

OEM Cross-Reference

This valve seat is a direct aftermarket replacement for the following genuine Caterpillar part numbers:

• 294-1679 (Intake or Exhaust Valve Seat)
• 294-1680 (Intake or Exhaust Valve Seat)

Note: Always verify the specific orientation (intake vs. exhaust) and quantity required for your engine rebuild kit.

Compatibility

This product is commonly used for the following applications:

• Engine Model: Caterpillar C6.4 Diesel Engine
• Equipment Types: Excavators, Bulldozers, Loaders, Forklifts, Buses, Trucks
• Common Machinery: Suitable for various Caterpillar heavy equipment models utilizing the C6.4 powerplant.

Fitment is based on the engine model specified. Please confirm your engine serial number and valve seat dimensions to ensure compatibility with your specific cylinder head.

Global Supply & Distribution

We maintain a robust supply chain capable of shipping this C6.4 valve seat to buyers worldwide. Our export operations serve major industrial markets including North America, Europe, Southeast Asia, the Middle East, and Australia.

Products are packaged securely for international freight, with fast dispatch from our Guangdong warehouse. We offer flexible shipping options via air, sea, or express courier (DHL, FedEx, UPS) to meet urgent rebuild deadlines at ports and industrial centers globally.

Quality Assurance

All valve seats are manufactured under strict quality control procedures. Key assurance measures include:

• Inspection: Video outgoing inspection is available upon request for order verification.
• Testing: Machinery test reports are provided to validate dimensional and material specifications.
• Warranty: Each part is backed by a 6-month warranty against manufacturing defects.
• Standards: Production follows industry-standard processes for hardness, concentricity, and surface finish.

FAQ

Q1: How do I know if I need the 294-1679 or the 294-1680 part for my C6.4 engine?
A: The 294-1679 and 294-1680 typically refer to the intake and exhaust valve seats, respectively. You should order the specific part based on its position in the cylinder head. We recommend inspecting your old valve seats or consulting your engine service manual to confirm which part number corresponds to the intake and which to the exhaust valve location.

Q2: Is installation of this valve seat a straightforward DIY task?
A: Replacing valve seats is a precision machining task. It typically requires a valve seat cutter or grinder to properly install and seat the new component. We recommend this job be performed by a qualified diesel engine machinist or a professional workshop with the correct tooling to ensure proper concentricity and valve seal.

Q3: What maintenance should I perform when replacing the valve seats?
A: When replacing valve seats on a C6.4 engine, it is best practice to also replace the valves, valve guides, and valve stem seals. This ensures a complete and reliable valve train rebuild. Additionally, check the cylinder head for cracks or warping and have it resurfaced if necessary to maintain proper compression and engine performance.